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2021-02-09 23:24:19
the candidate
2021-01-29 23:24:19
10. 米歇尔?詹尼克(澳大利亚跨栏运动员)
2021-02-01 23:24:19
小说作者安东尼·赫洛维兹(anthony horowitz)透露,新书《trigger mortis》为现代读者作了改动,包含反对吸烟的信息,而且首次有一位“直言不讳”的同性恋朋友出场。
2021-01-29 23:24:19
n. 学会,学院,协会
2021-02-06 23:24:19
new year time is here. i hope you have a wonderful new year. may every day hold happy hours for you.新年来临,祝新年快乐,愿你时时刻刻幸福欢乐!
2021-01-31 23:24:19
单词arrogant 联想记忆:
2021-01-31 23:24:19
her mother stephanie boyden, 32, says bobbi is a 'diva' who runs to the stage when her name is called - and screams when she has to leave.
2021-01-22 23:24:19
more recently, however, general motors made a self-driving car in 1958 that adjusted its steering wheel based on the alternating currents given off by a wire placed inside the road. while the vehicle did actually drive itself, it does not qualify as the first autonomous vehicle because it depended on wires placed inside the ground. the world's first autonomous vehicle was made by s. tsugawa and several of his colleagues at japan's tsukuba mechanical engineering laboratory. however, german engineer ernst dickinson is regarded as the pioneer of the autonomous car. in 1987, he developed the vamors which was capable of traveling more than 90 kilometers per hour (55 mph) for about 20 kilometers (12 mi). seven years later, he made the vamp, which could recognize road signs, know its own position in a lane, detect other vehicles, and even decide when to change lanes. and a year after that, he and his team made another autonomous vehicle which traveled from germany to denmark. the vehicle had a maximum speed of 180 kilometers per hour (111 mph) and was controlled by a human for about 5 percent of the journey.
2021-01-25 23:24:19
an international medical journal's retraction of 107 research papers from china, many of them by clinical doctors, has reignited concerns over academic credibility in the country.
2021-02-05 23:24:19
since the establishment of avic 1 and avic 2 in 1999, which really marked the beginning of china’s push into the commercial aerospace market, there has been no doubt about china’s intent and the direction it wants its industry to take. but the pace at which it would achieve this ambition was less uncertain. almost 20 years on, things have become much more clear, and there is now little doubt that china is well on its way to succeeding where several other countries have failed in becoming a full-fledged player in the large commercial aircraft manufacturing sector, with the potential to disrupt the long-standing duopoly of airbus and boeing.